Hot surface drying is utilized in areas where pavement fabrics are going to be installed and also the drying out of surfaces for resurfacing of both rigid and flexible pavements.


This process is used for the De Icing of roadways, bridges and airport runways without the use of any antifreeze which can contaminate surface water.


Defogging can be accomplished in isolated areas by (a) warming up the surface to 100°F to 125° F and letting the heat rise changing the temperature of the fog which will convert it to water and cause it to dissipate and (b) in areas where fog is a constant problem, heating panels could be installed along each side of the surface, directed at the surface, and the radiant heat will heat the air/fog above the surface and dissipate the fog.




The work covered by this section of the specifications consists of furnishing all labor, equipment, and materials, and performing all operations in accordance with heating the surface, both rigid and flexible.


Prior to commencing the heating operation, the pavement shall be cleared of all loose material. Power brooms shall be supplemented, when necessary, by hand brooming and such other tools, as required, to bring the surface to a clean, suitable condition, free of deleterious material.


The existing surfaces shall be heated until such time that all moisture has been completely evaporated on the surface and any moisture visible in any cracks in said surface. The surface should be brought to a temperature of not less than 80 degrees. This temperature is recommended ideal for the application of tack coat on rigid pavements for asphalt overlay or ideal temperatures for existing asphalt to be overlaid or ideal temperature conditions for asphalt that will be surfaced with a pavement fabric.


The work covered by this section of the specifications consists of furnishing all labor, equipment, and materials, and performing all operations in accordance with heating the surface, both rigid and flexible.


Prior to commencement of the operation, one is to measure the surface area totaling the square yards and the depth of the ice to determine how many Heat Masters would be required to perform the operation in a reasonable amount of time. Please see example of airports shown.


The surface shall be clear of as much snow and loose rim ice as possible by using snow plows or power brooms.


The heavy equipment required for this operation shall be a Heat Master or Heat Masters with the
100% radiant, (no flame) heaters.

The plows shall be a standard plow that is currently being used to remove the snow.

The sweepers shall be a standard sweeper that is currently being used to remove the snow and debris.

If vacuum equipment is used in place of plows or sweepers it shall be large enough to keep up with the melting of the ice. The removal procedure will be the same as if plows and/or sweepers are used.


While operating the Heat Masters in a slow forward motion, the operator shall adjust the speed to melt the ice to within _ inch of the surface, leaving the warm water to melt the remaining ice. This eliminates any chance of harm to the pavement, paint lines or lights.

Before removing the water the plows, brooms or vacuums shall wait until the water temperature has melted the ice below and before the water coming from the melted ice falls to 38° F, at which point the water shall be removed. The water is to be wind rowed off the surface where the ice has melted by plows or sweepers and to continue until the water has been pushed off the adjacent surfaces where ice is to be melted.

Depending on the thickness of the ice, it may require a multiple pass application.



The work covered by this section of the specifications consists of furnishing all labor, equipment, and materials, and performing all operations in connection with heating of the surface to be defogged


The equipment used to heat the surface shall fully meet the standards of the state and local Bureau of Air Quality Control.

The heating equipment shall be the Heat Master with its
100% radiant, (no flame) Luminous Wall Heating System. At its maximum BTU output of 100,000 BTU’s per sq ft of chamber surface, which allows the machine to heat the surface evenly while traveling at a speed determined by the operator. This speed will allow the pavement surface temperature to reach between 100°F and 125°F. The Heat Master is to make as many passes as necessary until the fog dissipates to an area acceptable to the manager.

Note: Care must be taken not to exceed a pavement temperature of 150°F to protect any pavement markings.

For Stationary Luminous Wall Heaters: At or before the fog conditions exist, the heaters are to be turned on at full temperature and continued to be on until the fog dissipates.

The heating panels are to be mounted and adjusted in a manner that will not allow the surface to become overheated while panels are on full heat mode.

Note: The heater must be guarded to protect anyone or anything from passing to close in front of the face of the heater.

Thermal Power Corporation is dedicated to manufacturing the finest Road Saving equipment in the world.

The primary purpose of these specifications is to develop a clean, clear, quiet, high quality hot surface treatment reputation and to raise the standards of such treatments so that every pavement manager, rural, urban or private, can take advantage of the savings.

We at TPC set the best specifications possible and then build the machinery to perform these specifications.

Thermal Power Corporation is constantly striving to improve its products and methods. Therefore, we reserve the right to change design, materials, and/or specifications without notice.